Rear Suspension Trumpets

Hi, have just rebuilt my radius arms into a new subframe but i’m having trouble getting the suspension trumpet and cone into the frame and radius arm plastic socket. It almost seems to be to long but i know this is not the case, i cannot seperate the cone from the trumpet is this what i need to do first?
The last time i did this i was using shortened trumpets and had no trouble at all, help!!

Andy.

to get the cone off the trumpet hold the trumpet in the vice get a block of wood drill a hole in it to take the compression tool compress the cone using the wood as if it was the body of the car (as if it was a front cone) as you tighten the tool it well make the cone let go of the trumpet

if u put the trumpet and donut in first and lower the radius arm as much as possible it should slot in and then lift the radius arm and it should pop into place